1220022055025 has 24 divisors (see below), whose sum is σ = 1582724413440. Its totient is φ = 931144375040.

The previous prime is 1220022055019. The next prime is 1220022055037. The reversal of 1220022055025 is 5205502200221.

It is a de Polignac number, because none of the positive numbers 2^k-1220022055025 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220022054985 and 1220022055003.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2549720 + ... + 2990169.

It is an arithmetic number, because the mean of its divisors is an integer number (65946850560).

Almost surely, 2^{1220022055025} is an apocalyptic number.

It is an amenable number.

1220022055025 is a deficient number, since it is larger than the sum of its proper divisors (362702358415).

1220022055025 is a wasteful number, since it uses less digits than its factorization.

1220022055025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5540305 (or 5540300 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 1220022055025 its reverse (5205502200221), we get a palindrome (6425524255246).

The spelling of 1220022055025 in words is "one trillion, two hundred twenty billion, twenty-two million, fifty-five thousand, twenty-five".